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> There's also quite a number of disadvantages with concrete. Lack of sand. This is good point. One would think that sand is unlimited supply, but that's actua
by Yaggo 8y ago
> There's also quite a number of disadvantages with concrete. Lack of sand.
This is good point. One would think that sand is unlimited supply, but that's actually not the case:
https://www.businessinsider.com/world-running-out-sand-resources-concrete-2018-6 https://www.businessinsider.com/world-running-out-sand-resou...
- perl4ever 8y agoI find it interesting that the article you linked to doesn't mention one usage of sand that I'd expect it to - namely proppant for fracking.[1] It seems like just yesterday the harmful effects of fracking were the topic of countless articles, and now even an article where it would naturally fit in overlooks them. I wonder why? [1]https://info.drillinginfo.com/proppant-the-greatest-oilfield-innovation/ https://info.drillinginfo.com/proppant-the-greatest-oilfield...
- perl4ever 8y agoTo elaborate, from the link: "The first experiments in the 1940s used around 150 pounds of sand, but now it’s around 5 million pounds per well." "the proppant industry is definitely up and to the right – 57 billion lbs in 2012"